Odakyu 8000 series

Odakyu 8000 series
6-car set 8263 in November 2021
In service1983 – Present
ManufacturerNippon Sharyo, Kawasaki Heavy Industries, Tokyu Car Corporation
Constructed1982–1987
Entered service22 March 1983
Refurbished2002–2013
Scrapped2020–
Number built160 vehicles (32 sets)
Number in service148 vehicles (30 sets)
Number scrapped12 vehicles
Formation4 or 6 cars per trainset
Fleet numbers8051–8066, 8251–8266
Operators
DepotsKitami
Lines served
Specifications
Car body constructionSteel
Car length20,000 mm (65 ft 7 in)
Width2,900 mm (9 ft 6 in)
Height4,145 mm (13 ft 7 in)
Doors4 pairs per side
Maximum speed
  • Service: 100 km/h (62.1 mph)[1]
  • Design: 100 km/h (62.1 mph)[2]
Traction system
Power output140 kW x4 per motored car (field chopper sets)
190 kW x4 per motored car (VVVF sets)
Acceleration3 km/(h⋅s) (1.9 mph/s) (field chopper sets)[4]
3.3 km/(h⋅s) (2.1 mph/s) (VVVF sets)[5]
Deceleration3.5 km/(h⋅s) (2.2 mph/s) (field chopper sets)[4]
4 km/(h⋅s) (2.5 mph/s) (VVVF sets)
Electric system(s)1,500 V DC
Current collector(s)Overhead lines
BogiesFS516 (powered cars)
FS016 (non-powered cars)
Braking system(s)Regenerative braking
Safety system(s)OM-ATS, D-ATS-P
Multiple working4000I/5000I/9000/1000/3000 series
Track gauge1,067 mm (3 ft 6 in)

The Odakyu 8000 series (小田急8000形, Odakyū 8000-gata) is a commuter electric multiple unit (EMU) train type operated by the private railway operator Odakyu Electric Railway in Japan since 1983.

Formation

Trains are formed as 6- and 4-car sets as shown below, with car 1/7 facing the Odawara, Fujisawa or Karakida end and car 6/10 facing the Shinjuku or Katase-Enoshima end. Trains are mostly used in 6+4 car formations.

6-car sets

Car No. 1 2 3 4 5 6
Designation Tc2 M3 T1 M2 M1 Tc1
Numbering 8550 8500 8450 8300 8200 8250
Capacity 144 162 144
Weight (t) 31.2 39.8 33.3 40.3 39.3 31.7

The M3 and M2 cars each have two single-arm pantographs.

4-car sets

Car No. 7 8 9 10
Designation Tc2 M2 M1 Tc1
Numbering 8150 8100 8000 8050
Capacity 144 162 144
Weight (t) 31.3 40.5 39.2 34.1

The M1 and M2 cars each have one single-arm pantograph.

Interior

Passenger accommodation consists of seven-person bench seating situated between the doors with blue upholstery, with smaller bench seats that hold up to four at the car ends. Trains refurbished in 2007 have an interior that is similar to that of the 4000 series. Some cars have a jump seat that folds up to provide space for commuters using wheelchairs.

  • Interior of an unrefurbished 8000 series car
    Interior of an unrefurbished 8000 series car
  • Interior of a refurbished 8000 series car, December 2020
    Interior of a refurbished 8000 series car, December 2020
  • Jump seat in car 8263
    Jump seat in car 8263

History

Built from 1982, the 8000 series was designed to help the Odakyu Electric Railway deal with the increasing number of passengers they had to carry from suburbs into the Tokyo region.[6] The 8000 series was the last Odakyu trainset to use their distinctive ivory body with blue accents; all future Odakyu commuter trains would use unpainted stainless steel bodies with the same blue accents.

Starting from 2002, the 8000 series would undergo a program of refurbishment. Improvements include replacement of LED screens, new variable-frequency drive systems and replacement of the lozenge-style pantographs to single-arm pantographs among others.

Set 8255, one of the last two remaining field chopper sets, was withdrawn from service in August 2020. It was carried out of Sagami-Ōno depot to a scrapping facility on 27 October 2020.[7]

  • OER set 8253 in 1987
    OER set 8253 in 1987
  • Unrefurbished driving cab
    Unrefurbished driving cab
  • Refurbished driving cab
    Refurbished driving cab

Transfer to Seibu Railway

On 26 September 2023, it was announced that Odakyu Railway would be transferring over a number of 8000 series trainsets to the Seibu Railway along with some Tokyu 9000 series trainsets from Tokyu Railway. The transfer is set to take place over five years from 2024 to 2029. Seibu announced that 8000 series sets will be used on the Kokubunji Line.[8][9] It was later announced on 10 May 2024 that one 8000 series set would be transferred to Seibu Railway and enter service on the Kokubunji Line later in 2024 as part of its fiscal 2024 capital investment plan.[10] The first set to be transferred, 6-car set 8261, was transported from Shin-Matsuda Station to Seibu's Kotesashi Depot via Kawasaki Freight Station on 19 and 20 May 2024.[11][12]

Accidents and incidents

On 12 August 2013 at about 6:35pm JST,[13][14] 8000 series set 8261 (operated with set 8058[15]) was struck by lightning. No passengers were hurt as the train was equipped with lightning arresters; however, as a result of the strike, the train was left stalled for about twenty minutes[16] and needed repairs.

On 19 June 2019, set 8264 (operated with set 8064) was severely damaged in a collision with a car stuck at a level crossing between Hon-Atsugi and Aikōishida.[17] Set 8264 was scrapped on 1 April the following year.

  • 8261, the set involved in the lightning-strike incident, in 2012
    8261, the set involved in the lightning-strike incident, in 2012

References

  1. ^ 小田急電鉄のひみつ [Secrets of the Odakyu Electric Railway] (in Japanese). Japan: PHP Institute, Inc. 26 January 2012. p. 34. ISBN 978-4-569-80244-2.
  2. ^ 鉄道ピクトリアルNo.829 [The Railway Pictorial No. 829]. The Railway Pictorial (in Japanese). No. 829. Japan: Denkisya Kenkyukai Co., Ltd. January 2010. pp. 310–311.
  3. ^ a b "小田急電鉄8000形".
  4. ^ a b 鉄道ピクトリアルNo.414 [The Railway Pictorial No. 414]. The Railway Pictorial (in Japanese). No. 414. Japan: Denkisya Kenkyukai Co., Ltd. March 1983. p. 42.
  5. ^ 8000形更新車諸元表 [Refurbished Odakyu 8000 series specification sheet]. Rolling Stock & Technology (in Japanese). No. 98. Japan: Rail & Tech Publishing. December 2008. pp. 18, 49.
  6. ^ 小田急電鉄の車両 [Vehicles of the Odakyu Electric Railway] (in Japanese). Japan: JTB Publishing, Inc. 2002. p. 75. ISBN 978-4533044694.
  7. ^ "【小田急】8000形8255×6(8255F)廃車陸送".
  8. ^ "西武，東急9000系と小田急8000形を「サステナ車両」として譲受" [Seibu to take ownership of Tokyu 9000 Series and Odakyu 8000 series cars]. Japan Railfan Magazine Online (in Japanese). Archived from the original on 26 September 2023. Retrieved 26 September 2023.
  9. ^ Kinoshita, Kenji (26 September 2023). "西武鉄道「サステナ車両」東急電鉄9000系＆小田急電鉄8000形を譲受" [Acquisition of Tokyu 9000 Series and Odakyu 8000 Series Cars by Tokyu Railways]. Mynavi Corporation (in Japanese). Archived from the original on 26 September 2023. Retrieved 26 September 2023.
  10. ^ "小田急8000形、いよいよ新天地・西武鉄道へ！ 今年度は1本 改修のち国分寺線に導入". Traffic News (in Japanese). Japan: Mediavague Co., ltd. 10 May 2024. Retrieved 21 May 2024.
  11. ^ "小田急8000形が甲種輸送される" [Odakyu 8000 series is transported as Class A]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 19 May 2024. Retrieved 21 May 2024.
  12. ^ "小田急の車両が西武線に来た！異色の「サステナ車両」第1編成 国分寺線で運行へ". Traffic News (in Japanese). Japan: Mediavague Co., ltd. 20 May 2024. Retrieved 21 May 2024.
  13. ^ "小田急8000形8261Fが、昨年8月に発生した落雷故障の修理を終えて運用復帰！".
  14. ^ "事故・トラブルの発生状況と再発防止" [Troubling occurrences and prevention of such situations]. Odakyu Electric Railway. June 2014. Retrieved 13 November 2017.
  15. ^ "2009（平成21）年以降の鉄道人身事故一覧＠ウイキ" [List of railway accidents resulting in injury or death after 2009].
  16. ^ 小田急線の電車に落雷、衝撃の瞬間 [Train on the Odakyu Line struck by lightning, almost a disaster]. JNN News (in Japanese). Japan: Yahoo! Japan. 19 August 2013. Archived from the original on 23 April 2011. Retrieved 13 November 2017.
  17. ^ "小田急線が乗用車と衝突、脱線 ２０日始発から運転再開：朝日新聞デジタル". 朝日新聞デジタル (in Japanese). 19 June 2019. Retrieved 8 December 2020.
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